Mission analysis and preliminary spacecraft design of the enhanced x-ray timing and polarimetry observatory

Wen Chen; Zhencai Zhu; Yupeng Xu; Xingbo Han; Yehai Chen; Xingzi Bi; Qi Shi; Rui Liu; Xiangyu Chao; Cheng Zhu; Weiwei Zhao; Shuangnan Zhang; Fangjun Lu; Marco Feroci; Margarita Hernanz; Huili Yuan; Yingquan Yang; Junwang He; Yuan Fang; Yueting Zhang; Xingjian Shi; Kuoxiang Zhang; Jinpei Yu

doi:10.1117/12.2562138

13 December 2020 Mission analysis and preliminary spacecraft design of the enhanced x-ray timing and polarimetry observatory

Wen Chen, Zhencai Zhu, Yupeng Xu, Xingbo Han, Yehai Chen, Xingzi Bi, Qi Shi, Rui Liu, Xiangyu Chao, Cheng Zhu, Weiwei Zhao, Shuangnan Zhang, Fangjun Lu, Marco Feroci, Margarita Hernanz, Huili Yuan, Yingquan Yang, Junwang He, Yuan Fang, Yueting Zhang, Xingjian Shi, Kuoxiang Zhang, Jinpei Yu

Author Affiliations +

Proceedings Volume 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray; 114442E (2020) https://doi.org/10.1117/12.2562138
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

The enhanced X-ray Timing and Polarimetry Observatory (eXTP) is a flagship international collaboration mission led by Chinese Academy of Sciences, with a large contribution from more than 20 European institutes. eXTP mission is designed to study the equation of state of ultra-dense matter under extreme conditions of strong density, gravity and magnetic field. The satellite carries four main instruments, including the Spectroscopy Focusing Array (SFA), the Large Area Detector (LAD), the Polarimetry Focusing array (PFA) and the Wide Field Monitor (WFM), enabling simultaneous spectral-timing-polarimetry studies of celestial sources in the energy range from 0.5-30 keV. The satellite will fly at a near-zero-inclination Low Earth Orbit, and is featured with long-time steady high-precision coaxial pointing, near realtime burst alert distribution, and follow-up maneuver capabilities. This paper describes the primary mission requirements and constraints, and presents an overall mission analysis including orbit analysis, pointing strategy, and board-ground communications, etc. The preliminary design of eXTP satellite is also introduced, including satellite overall configuration, observation modes, avionics architecture and development plan.

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Wen Chen, Zhencai Zhu, Yupeng Xu, Xingbo Han, Yehai Chen, Xingzi Bi, Qi Shi, Rui Liu, Xiangyu Chao, Cheng Zhu, Weiwei Zhao, Shuangnan Zhang, Fangjun Lu, Marco Feroci, Margarita Hernanz, Huili Yuan, Yingquan Yang, Junwang He, Yuan Fang, Yueting Zhang, Xingjian Shi, Kuoxiang Zhang, and Jinpei Yu "Mission analysis and preliminary spacecraft design of the enhanced x-ray timing and polarimetry observatory", Proc. SPIE 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 114442E (13 December 2020); https://doi.org/10.1117/12.2562138

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KEYWORDS

Polarimetry

Observatories

X-rays

Satellites

Space operations

Earth observing sensors

Magnetism

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